US3713604A - Supporting devices - Google Patents

Supporting devices Download PDF

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Publication number
US3713604A
US3713604A US00068122A US3713604DA US3713604A US 3713604 A US3713604 A US 3713604A US 00068122 A US00068122 A US 00068122A US 3713604D A US3713604D A US 3713604DA US 3713604 A US3713604 A US 3713604A
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US
United States
Prior art keywords
bobbin
mandrel
helical spring
spring mandrel
yarn
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00068122A
Other languages
English (en)
Inventor
K Foley
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Application granted granted Critical
Publication of US3713604A publication Critical patent/US3713604A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/04—Carriers or supports for textile materials to be treated
    • D06B23/042—Perforated supports
    • D06B23/045—Perforated supports radially collapsible
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • ABSTRACT A method and apparatus for minimizing the distortion that may occur in a hollow textile bobbin when such a bobbin having thermoplastic yarn wound thereon is subjected to conditions likely to cause the yarn to contract, in which a helical spring mandrel that may be wound-up is inserted into the bobbin.
  • the present invention relates to mandrels for supporting hollow, textile bobbins.
  • thermoplastic yarns may be put e.g. polyamide or polyester yarns
  • they may at some stage during processing be wound on to conventional, cylindrical, hollow bobbins and heat-treated at high temperatures.
  • the yarns may be exposed to superheated steam at tem peratures up to 200C for a number of hours.
  • the Applicants have found that by using a suitable helical steel spring mandrel that may be twisted to reduce its diameter when the bobbin is to be either loaded and unloaded and released when the bobbin is in position, sufficient support for the bobbin can be provided to minimize distortion yet enable the bobbin to be removed from the mandrel without difficulty.
  • the bobbin is preferably not subjected to forces that might distort or deform it beyond its elastic limit.
  • the present invention provides a method for minimizing distortion in a hollow textile bobbin holding thermoplastic yarn when such a bobbin is subjected to conditions likely to cause the yarn to contract in which prior to such subjection there is longitudinally inserted into the bobbin a helical spring mandrel of sufficient size to be a firm fit therein which is subsequently removed from the bobbin by first reducing its overall diameter.
  • the invention further provides an apparatus for carrying out the above method comprising a helical spring mandrel of sufficient size to be a firm fit within thebobbin and means for reducing its overall diameter.
  • One convenient way of reducing the overall diameter of the helical spring mandrel is to twist or wind one end of the spring relative to the other, thus tightening the spring.
  • the spring mandrel should be of sufficient size when released to support at least that internal area of the bobbin liable to distortion and preferably the whole internal area of the bobbin.
  • Any conventional helical spring ofcircular cross-section wire, of sufficient size and strength and with a coefficient of friction high enough to prevent the spring unwinding under distorting loads may be employed in the present invention.
  • a spring with a flat outer face may be used when there is a danger of corrugations being formed in the bobbin.
  • Such corrugations might be formed if there was an increase in the contractile forces generated during yarn treatment or if a soft material had been employed in the manufacture of the bobbin.
  • a thin steel sheath may be inserted into the bobbin in contact with the wall thereof either before the spring is inserted or released after insertion.
  • the present invention is particularly useful when yarn wound on a disposable hollow bobbin made of a relatively soft material is subjected to more than one thermal treatment such as additional setting or dyeing.
  • a bobbi'n may be supported by a spring mandrel during yarn winding on a drawtwister or draw winder. The mandrel would then serve to resist the forces set up during relaxation of the yarn at room tem- EXAMPLE 1
  • lbs. of 840 denier, filament yarn derived from polyhexamethylene adipamide was wound on to a tubular bobbin corresponding to British Standard Specification 1471:1955 and made of HT. 10-
  • the bobbin had the following dimensions:
  • the yarn package was then heated in an atmosphere of steam for.3 hours at 200C and at atmospheric pressure.
  • EXAMPLE 2 In this example a yarn package of the same dimensions as that usedin Example 1 was loadedyon to a spring mandrel for the steam treatment. An 8 percent Nickel, 18 percent Chromium stainless steel wire spring of 7 wire gauge was employed. It had a spring rate of 2-3 lbs. force per inch'and its free length was 14.5 inches and its free overall diameter 2% inches. Two complete turns applied to one end of the spring while the other end was fixed reduced the overall diameter of the spring to 2 9/32 inches.
  • the spring was inserted in the bobbin by twisting one end while the other end was held in a rigid support.
  • EXAMPLE 3 Examples 1 and 2 were repeated with similar bobbins holding 4 lbs. of 1,000 denier, 192 filament yarn derived from polyethylene terephthalate. Relevant bobbin dimensions were as follows:
  • Length 13.730" Mean internal diameter 2.310" (ends of bobbin) Mean internal diameter 2.252" (center of bobbin) After steaming with the support of a spring mandrel:
  • a method of minimizing distortion of a rigid hollow cylindrical textile bobbin having yarn wound thereon subjected to high temperature treatment to effect shrinkage of said yarn resulting in load distortion of the bobbin comprising inserting in the interior of said hollow bobbin a helical spring mandrel in firm contact with the interior circumference of the cylindrical hollow bobbin during yarn treatment, said mandrel having twisting means thereon and contracting said mandrel by twisting said helical spring mandrel and thereby effect removal of the helical spring mandrel from the bobbin after yarn treatment.
  • step of inserting the helical spring mandrel includes tightening the spring mandrel to reduce the overall diameter of the spring mandrel prior to its insertion into the bobbin.
  • An apparatus comprising a load distortion resistant rigid hollow cylindrical textile bobbin, a helical spring mandrel and a sheath, said sheath being in firm contact with the interior wall of said bobbin and located between said wall and said mandrel, said helical spring mandrel having twisting means thereon to effect contraction thereof for insertion of said mandrel into or removal from said sheath, said helical spring mandrel being in firm contact with the interior wall of said sheath upon insertion thereof.
  • Apparatus according to claim 5 in which the helical spring mandrel possesses a flat outer face for contacting the internal surface of the hollow bobbin.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Laminated Bodies (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Springs (AREA)
US00068122A 1969-09-15 1970-08-31 Supporting devices Expired - Lifetime US3713604A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4529369 1969-09-15

Publications (1)

Publication Number Publication Date
US3713604A true US3713604A (en) 1973-01-30

Family

ID=10436652

Family Applications (1)

Application Number Title Priority Date Filing Date
US00068122A Expired - Lifetime US3713604A (en) 1969-09-15 1970-08-31 Supporting devices

Country Status (8)

Country Link
US (1) US3713604A (xx)
AU (1) AU1955370A (xx)
BE (1) BE756185A (xx)
CA (1) CA949949A (xx)
DE (1) DE2045572A1 (xx)
FR (1) FR2061393A5 (xx)
GB (1) GB1327379A (xx)
ZA (1) ZA705970B (xx)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050199334A1 (en) * 2001-01-22 2005-09-15 Michael Schweigert Coated monofilament tape bobbins and methods for winding
US20090036227A1 (en) * 2006-01-24 2009-02-05 Simon Garry Moore Adjustable mechanism for attaching two shafts
US20140161510A1 (en) * 2012-12-10 2014-06-12 Rolls-Royce Plc Joint assembly and method of using the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2010313866A1 (en) * 2009-11-02 2012-05-31 Puku Limited Flexible spring fastener

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050199334A1 (en) * 2001-01-22 2005-09-15 Michael Schweigert Coated monofilament tape bobbins and methods for winding
US20090036227A1 (en) * 2006-01-24 2009-02-05 Simon Garry Moore Adjustable mechanism for attaching two shafts
US7871337B2 (en) * 2006-01-24 2011-01-18 Puku Limited Adjustable mechanism for attaching two shafts
US20140161510A1 (en) * 2012-12-10 2014-06-12 Rolls-Royce Plc Joint assembly and method of using the same
US9441651B2 (en) * 2012-12-10 2016-09-13 Rolls-Royce Plc Joint assembly and method of using the same

Also Published As

Publication number Publication date
GB1327379A (en) 1973-08-22
FR2061393A5 (xx) 1971-06-18
CA949949A (en) 1974-06-25
ZA705970B (en) 1971-04-28
DE2045572A1 (de) 1971-03-25
AU1955370A (en) 1972-03-09
BE756185A (fr) 1971-03-15

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